* {
  margin: 0;
  padding: 0;
}
body,
html,
.container-fluid {
  height: 100%;
  min-width: 1100px;
}
.header {
  width: 100%;
  height: 50px;
  background-color: #108ee9;
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}
.title span {
  position: absolute;
  top: 5px;
  left: 10px;
  font-family: "微软雅黑 Bold", "微软雅黑 Regular", 微软雅黑;
  font-weight: 700;
  font-style: normal;
  font-size: 28px;
  color: rgb(255, 255, 255);
}
.icon {
  width: 250px;
  display: flex;
}
.icon div {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  color: white;
  width: 100px;
  height: 23px;
  margin: 10px;
}
.icon div a {
  text-decoration: none;
  color: #fff;
}

.body {
  display: flex;
  height: calc(100% - 50px);
}
.body .nav {
  height: 100%;
  width: 187px;
  background-color: #f2f2f2;
  text-align: center;
}
.nav h4 {
  font-size: 15px;
}
.nav h4 > img {
  width: 20px;
  height: 20px;
}
.nav h4 > span {
  width: 35px;
  height: 20px;
}
#nav ul {
  height: 0;
  overflow: hidden;
  transition: 0.2s height linear;
}
#nav li {
  border-bottom: 0.5px solid rgba(173, 173, 173, 0.542);
}
.body .show {
  flex: 1;
  height: 100%;
}
